CN217361153U

CN217361153U - Composite insulation flexible fireproof cable

Info

Publication number: CN217361153U
Application number: CN202221337867.2U
Authority: CN
Inventors: 采海超; 袁军岗
Original assignee: Jinxing Cable Co ltd
Current assignee: Jinxing Cable Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-02
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a compound insulating flexible fireproof cable, including outer protective layer and power cable, the inner wall of outer protective layer is equipped with first flame retardant coating, and the inside of first flame retardant coating has seted up first cavity to the inside of first cavity is equipped with first ceramic clean shot, the inboard of first flame retardant coating is equipped with the shielding layer, and the inside annular of shielding layer is equipped with a plurality of power cable, and is a plurality of power cable's inboard is equipped with optical cable, signal cable and filling cable, power cable's the outside is equipped with the insulating layer, and the outside of insulating layer is equipped with the second flame retardant coating. The utility model discloses in, through setting up wear-resisting arch, a plurality of annular distributes at the wear-resisting arch of fireproof cable surface, improvement fireproof cable's that can be very big wear resistance, the risk of effectual reduction fireproof cable epidermis wearing and tearing damage reduces the possibility that the fireproof cable epidermis takes place to damage in the ground is dilatory, guarantees fireproof cable's aesthetic property.

Description

Composite insulating flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to compound insulating flexible fireproof cable.

Background

The photoelectric composite cable is suitable for being used as a transmission line in a broadband access network system, is a novel access mode, integrates optical fibers and transmission copper wires, and can solve the problems of broadband access, equipment power consumption and signal transmission. The transmission of optical signal, signal of telecommunication and electric power is realized through a cable, can reduce the cost of laying greatly, because the cable adopts composite construction, therefore a cable accomplishes multiple functions, has fine price/performance ratio.

The prior art has the following problems:

application No.: CN202122692772.4 discloses a composite insulating flexible fireproof cable, which is a composite cable with good fireproof effect formed by alternately distributing power cables and function cables, and has various functions of electrical signal transmission, optical signal transmission, etc., and has a reasonable internal structure, and the positions of the power cables and the function cables on the cross section are reasonably distributed. In addition, according to different use scenes, the actual setting of function cable can be selected, but the fireproof cable in the patent does not have wear resistance, so that the skin of the fireproof cable is easy to damage, and the aesthetic property of the fireproof cable is affected.

To this end, we propose a composite insulating flexible fireproof cable to solve the above drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and exist among the prior art and do not possess wear resistance, lead to this fireproof cable's epidermis easy damaged to cause the shortcoming of influence and the compound insulating flexible fireproof cable who proposes to fireproof cable's aesthetic property.

In order to achieve the above purpose, the utility model adopts the following technical scheme: compound insulating flexible fireproof cable, including outer protective layer and power cable, the inner wall of outer protective layer is equipped with first flame retardant coating, and the inside of first flame retardant coating has seted up first cavity to the inside of first cavity is equipped with first ceramic hollow sphere, the inboard of first flame retardant coating is equipped with the shielding layer, and the inside annular of shielding layer is equipped with a plurality of power cable, and is a plurality of power cable's inboard is equipped with optical cable, signal cable and packing cable, power cable's the outside is equipped with the insulating layer, and the outside of insulating layer is equipped with the second flame retardant coating, the inside of second flame retardant coating is equipped with the second cavity, and the inside of second cavity is equipped with second ceramic hollow sphere, the outside of second flame retardant coating is equipped with the inner protective layer, the surface integration of outer protective layer is equipped with wear-resisting arch.

Preferably, the wear-resisting bulges are provided with a plurality of wear-resisting bulges which are distributed on the outer surface of the outer protection layer in an annular array.

Preferably, the outer protection layer and the inner protection layer are both made of insulating rubber.

Preferably, the first ceramic hollow ball and the second ceramic hollow ball are made of ceramic, and the diameters of the first ceramic hollow ball and the second ceramic hollow ball are smaller than the widths of the first cavity and the second cavity respectively.

Preferably, the optical cable, the signal cable and the filler cable have the same diameter, and the diameter of the optical cable, the signal cable and the filler cable is 1/3 of the diameter of the power cable.

Preferably, the wear-resistant protrusions are of a hemispherical structure, and the wear-resistant protrusions are made of the same material as the outer protection layer.

Preferably, the power cable is provided in plurality, and the plurality of power cables have the same diameter.

Preferably, the shielding layer is formed by weaving tinned copper wires.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in through setting up wear-resisting arch, a plurality of annular distributes at the wear-resisting arch of fireproof cable surface, improvement fireproof cable's that can be very big wear resistance, the risk that the wearing and tearing of effectual reduction fireproof cable epidermis damaged reduces the fireproof cable epidermis and takes place the possibility of damage in the drag of ground, guarantees fireproof cable's aesthetic property.

2. The utility model discloses in through setting up first flame retardant coating and second flame retardant coating, first flame retardant coating and the second flame retardant coating of constituteing by first ceramic clean shot and second ceramic clean shot, when the circuit met naked light, first flame retardant coating and the second flame retardant coating melting point that first ceramic clean shot and second ceramic clean shot were constituteed were higher, can effectually reduce the probability that the cable was lighted by naked light, improved the fire resistance of cable to a certain extent, reduced the risk of cable burning.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a composite insulating flexible fireproof cable provided by the present invention;

fig. 2 is a cross-sectional view of the composite insulating flexible fireproof cable provided by the present invention;

fig. 3 is an enlarged schematic view of a position a of the composite insulating flexible fireproof cable provided by the utility model.

Illustration of the drawings:

1. an outer protective layer; 2. a first refractory layer; 21. a first chamber; 22. a first ceramic hollow sphere; 3. a power cable; 31. an inner protective layer; 32. a second refractory layer; 33. a second chamber; 34. a second ceramic hollow sphere; 35. an insulating layer; 4. an optical cable; 5. a signal cable; 6. filling cables; 7. wear-resistant protrusions; 8. and a shielding layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-3, the composite insulating flexible fireproof cable includes an outer protection layer 1 and power cables 3, a first flame retardant coating 2 is disposed on an inner wall of the outer protection layer 1, a first chamber 21 is disposed inside the first flame retardant coating 2, a first hollow ceramic ball 22 is disposed inside the first chamber 21, a shielding layer 8 is disposed inside the first flame retardant coating 2, a plurality of power cables 3 are annularly disposed inside the shielding layer 8, optical cables 4, signal cables 5 and filling cables 6 are disposed inside the plurality of power cables 3, an insulating layer 35 is disposed outside the power cables 3, a second flame retardant coating 32 is disposed outside the insulating layer 35, a second chamber 33 is disposed inside the second flame retardant coating 32, a second hollow ceramic ball 34 is disposed inside the second chamber 33, and the first flame retardant coating 2 and the second flame retardant coating 32 are composed of the first hollow ceramic ball 22 and the second hollow ceramic ball 34, when the circuit meets open fire, the melting point of the first flame retardant coating 2 and the second flame retardant coating 32 composed of the first ceramic hollow ball 22 and the second ceramic hollow ball 34 is higher, the probability that the cable is ignited by the open fire can be effectively reduced, the fire resistance of the cable is improved to a certain extent, the risk of cable combustion is reduced, the outer side of the second flame retardant coating 32 is provided with the inner protection layer 31, the outer surface of the outer protection layer 1 is integrally provided with the wear-resistant protrusions 7, the wear-resistant protrusions 7 are distributed on the outer surface of the fireproof cable in an annular mode, the wear resistance of the fireproof cable can be greatly improved, the risk of abrasion damage of the skin of the fireproof cable is effectively reduced, the possibility that the skin of the fireproof cable is dragged on the ground to cause damage is reduced, and the attractiveness of the fireproof cable is guaranteed.

In this embodiment: the wear-resistant protrusions 7 are arranged in a plurality, and the plurality of wear-resistant protrusions 7 are distributed on the outer surface of the outer protection layer 1 in an annular array.

In particular, the wear resistance of the power cable is further improved.

In this embodiment: the outer protective layer 1 and the inner protective layer 31 are made of insulating rubber.

Specifically, the effect of insulation is played, and the electric leakage of the cable is avoided.

In this embodiment: the first ceramic hollow ball 22 and the second ceramic hollow ball 34 are made of ceramic, and the diameters of the first ceramic hollow ball 22 and the second ceramic hollow ball 34 are respectively smaller than the widths of the first cavity 21 and the second cavity 33.

Specifically, it is convenient to arrange the first and second hollow

ceramic balls

22 and 34 in the first and

second chambers

21 and 33.

In this embodiment: the optical cable 4, the signal cable 5 and the filler cable 6 have the same diameter, and the optical cable 4, the signal cable 5 and the filler cable 6 have the diameter 1/3 of the power cable 3.

In particular, different functions can be realized by one cable conveniently.

In this embodiment: the wear-resistant protrusions 7 are of a hemispherical structure, and the materials of the wear-resistant protrusions 7 are the same as those of the outer protection layer 1.

In particular, the wear-resistant rubber has the advantage of wear resistance, and the service life is prolonged.

In this embodiment: the power cable 3 is provided in plural, and the diameters of the plural power cables 3 are the same.

In particular, the transmission of power is guaranteed.

In this embodiment: the shielding layer 8 is formed by weaving tinned copper wires.

Particularly, the shielding effect is effectively achieved, and interference of external signals to the cable is prevented.

The working principle is as follows: during the use, a plurality of annular distribution is at the wear-resisting arch 7 of fireproof cable surface, the abrasive resistance of improvement fireproof cable that can be very big, the risk of effectual reduction fireproof cable epidermis wearing and tearing damage, reduce the possibility that the fireproof cable epidermis takes place the damage in ground drag, guarantee fireproof cable's aesthetic property, secondly first flame retardant coating 2 and the second flame retardant coating 32 of compriseing first ceramic clean shot 22 and second ceramic clean shot 34, when the circuit meets the naked light, first flame retardant coating 2 and the second flame retardant coating 32 fusing point of compriseing first ceramic clean shot 22 and second ceramic clean shot 34 are higher, can effectually reduce the probability that the cable was lighted by the naked light, the fire resistance of cable has been improved to a certain extent, reduce the risk of cable burning.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The composite insulating flexible fireproof cable comprises an outer protective layer (1) and a power cable (3), and is characterized in that a first fire-resistant layer (2) is arranged on the inner wall of the outer protective layer (1), a first chamber (21) is formed inside the first fire-resistant layer (2), a first ceramic hollow sphere (22) is arranged inside the first chamber (21), a shielding layer (8) is arranged on the inner side of the first fire-resistant layer (2), a plurality of power cables (3) are annularly arranged inside the shielding layer (8), optical cables (4), signal cables (5) and filling cables (6) are arranged on the inner sides of the power cables (3), an insulating layer (35) is arranged on the outer side of the power cable (3), a second fire-resistant layer (32) is arranged on the outer side of the insulating layer (35), a second chamber (33) is arranged inside the second fire-resistant layer (32), and a second ceramic hollow sphere (34) is arranged inside the second chamber (33), an inner protective layer (31) is arranged on the outer side of the second refractory layer (32), and a wear-resistant bulge (7) is integrally arranged on the outer surface of the outer protective layer (1).

2. A composite insulated flexible fireproof cable according to claim 1, wherein the plurality of abrasion resistant protrusions (7) is provided, and a plurality of abrasion resistant protrusions (7) are distributed in an annular array on the outer surface of the outer protective layer (1).

3. A composite insulated flexible fireproof cable according to claim 1, wherein the outer protective layer (1) and the inner protective layer (31) are both made of insulating rubber.

4. The composite insulated flexible fireproof cable of claim 1, wherein the first ceramic hollow sphere (22) and the second ceramic hollow sphere (34) are made of ceramic, and the diameters of the first ceramic hollow sphere (22) and the second ceramic hollow sphere (34) are smaller than the widths of the first cavity (21) and the second cavity (33), respectively.

5. Composite insulated flexible fireproof cable according to claim 1, wherein the optical cable (4), signal cable (5) and filler cable (6) have equal diameters, and the optical cable (4), signal cable (5) and filler cable (6) have diameters 1/3 of the power cable (3) diameter.

6. The composite insulating flexible fireproof cable of claim 1, wherein the wear-resistant protrusion (7) is of a hemispherical structure, and the material of the wear-resistant protrusion (7) is the same as that of the outer protective layer (1).

7. Composite insulated flexible fireproof cable according to claim 1, wherein there are several power cables (3) and the diameter of several power cables (3) is the same.

8. A composite insulated flexible fireproof cable according to claim 1, wherein the shielding layer (8) is braided of tinned copper wire.